机构地区: 重庆大学自动化学院
出 处: 《重庆大学学报(自然科学版)》 2005年第1期82-85,共4页
摘 要: 混沌序列以其容易生成性、初值敏感性、复杂的伪随机性等,已成为一种经常用到的序列加密方法。讨论了一种混沌加密算法,此算法需生成 2个混沌序列,并用M序列对明文置乱,以增强保密性。据此算法设计出一块实用的加密解密专用芯片,内部所有模块均用AHDL(AlteraHardwareDescrip tionLanguage)语言编制完成,并下载到CPLD(ComplexProgrammableLogicalDevice)芯片中。最后设计出实验板,在 2台PC机间完成了实验。 Encryption algorithm based on chaotic sequenceshave become an often-used encryption method, owing to its ease of generation, sensitive to its initial condition, complex pseudo-random. The authors discuss an encryption algorithm based on chaotic sequences. The algorithm needs to generate two chaotic sequencesand uses m-sequencesas the perturbation sequencein order to enhance security. According to the algorithm mentioned above, they design the encryption and decryptionchip using AHDL(Altera Hardware Description Language)and implement it with CPLD.
领 域: [自动化与计算机技术] [自动化与计算机技术]